C/DWDM platform is mainly used in the metro area access layer network, and it can complete the function such as optical fiber saving, service multiplexing and distance extension, solve the shortage of fiber resources in the access layer network.,transport

The Penetrometer of fruit (also called fruit hardness tester), this series GY-1, GY-2 and GY-3 three kind of models, use to testing apple, pear, strawberry, grape's fruit's hardness. It is suitable for the fruit tree scientific research department

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